--- a/spec/latest/json-ld-api/index.html	Fri Apr 27 16:22:34 2012 -0400
+++ b/spec/latest/json-ld-api/index.html	Fri Apr 27 13:40:58 2012 -0700
@@ -1168,7 +1168,9 @@
         <tref>term</tref> associated with the partially
         matched IRI in the <tref>active context</tref> concatenated with a
         colon (:) character and the unmatched part of <em>iri</em>.</li>
-      <li>If <em>terms</em> is empty, return <em>iri</em>.</li>
+      <li>If <em>terms</em> is empty, and <em>iri</em> has a mapping to <tref>null</tref>,
+        return <tref>null</tref>.</li>
+      <li>Otherwise if <em>terms</em> is empty, add <em>iri</em> to <em>terms</em>.</li>
       <li>Return the shortest and lexicographically least value in <em>terms</em>.</li>
     </ol>
   </p>

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-suite/tests/compact-0017-context.jsonld	Fri Apr 27 13:40:58 2012 -0700
@@ -0,0 +1,6 @@
+{
+  "@context": {
+    "http://www.w3.org/2000/01/rdf-schema#comment": null,
+    "comment_en": {"@id": "http://www.w3.org/2000/01/rdf-schema#comment", "@language": "en"}
+  }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-suite/tests/compact-0017-in.jsonld	Fri Apr 27 13:40:58 2012 -0700
@@ -0,0 +1,6 @@
+{
+  "http://www.w3.org/2000/01/rdf-schema#comment": [
+    {"@value": "Kommenten auf Deutch.","@language": "de"},
+    {"@value": "Comment in English.","@language": "en"}
+  ]
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-suite/tests/compact-0017-out.jsonld	Fri Apr 27 13:40:58 2012 -0700
@@ -0,0 +1,7 @@
+{
+  "@context": {
+    "http://www.w3.org/2000/01/rdf-schema#comment": null,
+    "comment_en": {"@id": "http://www.w3.org/2000/01/rdf-schema#comment", "@language": "en"}
+  },
+  "comment_en": "Comment in English."
+}

--- a/test-suite/tests/compact-manifest.jsonld	Fri Apr 27 16:22:34 2012 -0400
+++ b/test-suite/tests/compact-manifest.jsonld	Fri Apr 27 13:40:58 2012 -0700
@@ -101,5 +101,11 @@
     "input": "compact-0016-in.jsonld",
     "context": "compact-0016-context.jsonld",
     "expect": "compact-0016-out.jsonld"
+  }, {
+    "@type": ["test:TestCase", "jld:CompactTest"],
+    "name": "Absolute IRI mapped to null is removed from output, except if it is used in a term",
+    "input": "compact-0017-in.jsonld",
+    "context": "compact-0017-context.jsonld",
+    "expect": "compact-0017-out.jsonld"
   }]
 }